For deploying a new instance in the europe-central2 region that needs to access an application on a Compute Engine instance in the us-west1 region within the same project, what is the recommended practice according to Google’s guidelines?
- Create a subnetwork in the same VPC in the europe-central2 region, then deploy a new instance in this subnetwork using the first instance’s private address as the endpoint.
- Utilize Cloud VPN to establish an encrypted tunnel between VPCs for secure connectivity.
- Implement VPC peering for inter-VPC private communication.
- Set up Cloud Router and BGP sessions for dynamic routing between VPCs.
Explanation:
The most efficient and best practice according to Google’s guidelines is to create a subnetwork in the same VPC within the europe-central2 region, and then launch a new instance in this subnetwork, using the first instance’s private address as the endpoint. This method ensures direct, secure communication within the same VPC without the need for additional configurations or services. It simplifies the network setup and maintains private connectivity between instances in different regions of the same project. Other options like using Cloud VPN, VPC peering, or Cloud Router with BGP sessions introduce unnecessary complexity and are not required for internal communication within the same VPC, making them less suitable for this scenario.